Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and step II are:
Crystallisation is a physical change and also can be reversed. Therefore, both the steps are physical change.

Question

Crystallisation is a physical change and also can be reversed. Therefore, both the steps are physical change.

Philoid · Accepted Answer

Crystallisation is a physical change and also can be reversed. Therefore, both the steps are physical change.